128151873 has 12 divisors (see below), whose sum is σ = 185213028. Its totient is φ = 85386240.

The previous prime is 128151853. The next prime is 128151889. The reversal of 128151873 is 378151821.

It can be written as a sum of positive squares in 2 ways, for example, as 112848129 + 15303744 = 10623^2 + 3912^2 .

It is not a de Polignac number, because 128151873 - 2²² = 123957569 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (128151823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20833 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (15434419).

Almost surely, 2^128151873 is an apocalyptic number.

It is an amenable number.

128151873 is a deficient number, since it is larger than the sum of its proper divisors (57061155).

128151873 is a wasteful number, since it uses less digits than its factorization.

128151873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064 (or 8061 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 128151873 is about 11320.4184109952. The cubic root of 128151873 is about 504.1676620005.

The spelling of 128151873 in words is "one hundred twenty-eight million, one hundred fifty-one thousand, eight hundred seventy-three".